{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["Chemical", "Disease"], "input": "Although 3 , 4 - methylenedioxymethamphetamine ( MDMA or ecstasy ) has been shown to damage brain serotonin ( 5 - HT ) neurons in animals and possibly humans , little is known about the long - term consequences of MDMA - induced 5 - HT neurotoxic lesions on functions in which 5 - HT is involved , such as cognitive function ."}
{"Chemical": ["3 , 4 - methylenedioxymethamphetamine", "MDMA", "ecstasy", "serotonin", "5 - HT"], "Disease": ["neurotoxic lesions"]}